[trhr]

We have all the titles we need. We have junior for "that guy who can't do a fuckin' thing unless you tell him exactly what to type." We have senior for "that guy who can take a ticket and implement it." We have lead for "that guy who can take a business idea and implement it."

[ehnto]

That should just be the title without prefix really, a Senior Developer should be providing more value than just ticket implementation.

These are just my opinions though, it differs from company to company. One place the difference between a Developer and a Senior Developer was a senior could be expected to own a feature and all the moving parts to get it deployed, eg: taking it to the board, organising all the approvals and business requirements with other teams etc. Other places senior just means "not junior" and the roles are the same, you just expect more talent from the senior.